Motor



H. H. NIELSEN.

MOTOR.

APPLICATION FILED SEPT. 18, 1919.

1,424,585, Patented Aug. 1, 1922?. I

miammw HANS I-IENRIK NIELSEN,

S A i OF ROI-DING, DENMARK.

Moron.

Application filed September 18, 1919.

Z '0 all whom it may concern.

Be it known that I, HANs Hnnmx NinL SEN, a subject of the King of Denmark, and resident of Kolding, in the Kingdom of Denmark, have invented new and useful Improvements in Motors (for which I have filed an application in Denmark on March 12, 1918, not patented), of which the fol lowing is a specification.

As well-known is the utilization of the fuel in explosion-motors very deficient, and one of the principal causes of this is the pollution of the gas mixture with the combustion-products in the cylinder.

My invention relates to improvements in motors for liquid and gaseous fuel, which augment the utilization of the fuel. by preventing or counter-acting the said pollution, and which consist in placing a compressionchamber in the prolongation of the cylinder having the inlet-valve for the gas mixture and the igniting device at its top and the outlet-valve at its foot, in which chamber the injected gas mixture is compressed with out being mixed with the combustion-products from preceding explosions.

The invention is illustrated in the accompanying drawing, which is showing a vertical section of the improved motor.

1 is the cylinder, in which the piston 2, working in four cycle, moves up and down. The cylinder 1 is according to the invention provided with a special. compression-chamher 3, arranged as a narrowed cylindrical prolongation of the cylinder 1.

At the top of the chamber 3 the inletvalve 4 is placed together with the igniting tube 5 or other igniting device. Finally there is on a (it place between the cylinder and the chamber 3 arranged a fine 6 with an exhaust valve 7.

According to the invention the compression-chamber 3 is so big that its volume corresponds to about of the strokevolume of the motor, and the inlet-valve 4 is thus arranged that the fuel entering through it will remain in the compressionchamber and during the compressionstroke be compressed in the said chamber, where it is ignited, when the explosion has to take place.

Specification of Letters Patent.

Patented Aug. 1, 1922.

Serial No. 324,589.

The motor works in the following manner:

During the beginning of the downward motion of the piston the exhaust valve is still open, and it is held open, till the piston has moved from to of the length of the suction-stroke. Thereby so much air is taken in that the cylinder above the piston, or to of the volume of the stroke is filled with air, mixed with combustion-products,

whereafter the outlet-valve is shut, while at the same time the inlet-valve is opened. During the further descending of the piston the mixture of air and combustion-products standing in the chamber 3 is expelled by the injected fresh gas mixture, so that the compression-chamber by the end of the suctionstroke will be quite filled with the fresh fuel, while the stroke-volume of the cylinder will be filled with a mixture of air and combustion-products. During the compressionstroke the entire contents of the cylinder and the compression-chamber are compressed into the chamber 3, where the fresh fuel will be standing uppermost in the up per third part or more of the chamber 8. Now the ignition is effected by the igniting device, arranged in this upper part of the compression-chamber, and the explosion is done, the fresh fuel immediately exploding, thereby producing the maximum pressure of explosion. During the now following stroke of expansion, the piston is moving downward by the pressure of the explosion, and a little before the conclusion of the expansion stroke (however a little later than usual) the exhaust valve is opened, so that the pressure in the cylinder falls to the pressure of the atmosphere, when the piston reaches its lowest position. During the ex haust stroke the outlet-valve 7 is always open and remains so, till the suction-stroke is or effected, as before mentioned.

It is evident that the motor without departing from the principle of the invention, may be built as a motor of two cycles or of more than four cycles.

Having thus described my invention I claim:

In a motor the combination of a cylinder having a piston, a cylindrical prolongation oi the said cylinder forming 2t compressionchamber and having a volume of Q;- to -.1- of the strol-ze-volunie, an inlet-valve for gasinixtui'e placed 1n the upper third part of the said compression-chamber and being adapted to remain shut during the first to of the suction-stroke, an igniting device placed 111 the upper third part of the said compression-chamber, and an exhaust-valve 10 placed at the foot of the said compressionchamber and above the said cylinder and being adapted to remain open during the first to 3- oi the suction-stroke, substantially set forth.

In testimony whereof I affix my signature 15 in presence 

